Home / 31,442.25-43,388.36-18,010.42

Finding the Fourth Proportional to 31,442.25, 43,388.36 and 18,010.42

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Solution

The fourth proportional to 31,442.25, 43,388.36 and 18,010.42 is: 24,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.25 : 43,388.36 = 18,010.42 : x
  2. Step 2: Convert to fraction form
    31,442.25/43,388.36 = 18,010.42/x
  3. Step 3: Cross multiply
    31,442.25x = 43,388.36 × 18,010.42
  4. Step 4: Simplify right side
    31,442.25x = 781,442,586.71
  5. Step 5: Solve for x
    x = 781,442,586.71/31,442.25
  6. Step 6: Final answer
    x = 24,853.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.